Transcript Review
Test review • Speciation and Extinction – What are the factors that must be present for speciation to take place • Allopatric vs Sympatric – What are the factors that facilitate each type of speciation • Extinction – What is the Burgess shale, and how does extinction connect to speciation • Examples of experimental design in evolutionary research. Know details Vocabulary • • • • • • • • • • Allopatric Speciation Sympatric Speciation Polyploidy evolutionary stasis Genetic drift Mutation Gene pool Host race Hybrid Hybrbridization • • • • • • • • • Hybrid vigor Ring species Post zygotic mechanism Pre zygotic mechanism Stabilizing selection Directional selection Mass extinction Phyletic gradualism Sex (why it is important in evolution) Life history • Reproductive strategies – Semelparous vs iteroparous – What is univoltine? • How do we define “fitness” for a semelparous organism, or for an iteroparous organism? • What can we tell from an age structure? Vocabulary • • • • • Fecundity Senescence Age distribution Age structure Vegetative reproduction • Viability • Fitness • Reproductive tradeoffs – Size of offspring – Clutch size – longevity Physical Ecology • Acclimation vs adaptation • Allometry • Cold blooded vs warm blooded • Poikilotherm vs homeoltherm • Ectotherm vs endotherm • Compensation point • Heat shock protein • Freeze tolerant • • • • • Conduction Convection Radiation Metabolic rate Q10 Temperature Coefficient 10 R 2 R1 T 2 T 1 Q2 • If an organism is at 23 degrees, and uses 1.5 grams of oxygen per minute, how much will it use at 33 degrees if the Q10 is 2? • How much at 28 degrees? • How much at 25 degrees? 10 R 2 R1 Temperature Coefficient T 2 T 1 Q2 10 R 2 R1 T 1T 2 Q2 • A fruit fly generates1 ml of Co2 per hour at 25 degrees • If the Q10 = 2; how much will it generate at 28 degrees? How Organisms Work • Chemical Transport – Osmosis, gas and water transport. What are the allometric effects, and what are the mechanisms that have evolved. Tutorials